The series of numbers indicates the station the unit belongs to (Engine 55 would run out of Station 51)
If the series ends in

-0: station, EMS unit

-1: station, fire cheif

-2: assistant fire chief

-3: assistant fire chief

-4: engine

-5: engine

-6: engine

-7: tanker

-8: tanker

-9: special unit, rescue
Captains, Lieutenants, and engineers share the same numbers as the Engines, Tankers, and Special Units * The origional version of this list is posted on the Northmoreland Fire Department's Home Page